[asterisk-users] Re: Recommendations for QoS, PoE Switches

[Cory Andrews]

Zeeshan - understanding the Cisco OSI model will help you
conceptualize.....http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_d
oc/introint.htm
 
There is a good graphic depiction here
http://www.certificationzone.com/cisco/images/graphics/VP/IPTT/WP1/VP-IP
TT-WP1-01.gif  Using this image, starting at the bottom you have the
physical layer, or "Layer 1", Data Link or "Layer 2", Network or "Layer
3", etc
 
 
 
Cory Andrews
 

________________________________

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Zeeshan
Zakaria
Sent: Monday, December 11, 2006 9:54 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Re: Recommendations for QoS, PoE Switches


What's the price for these HP switches?

And also I someone can give me a link to some document where I can read
about Layer 2 and Layer 3, how they help in VoIP traffic, it'll be
helpful. 
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